tender for labour for cutting open bituminous road for laying water mains or sewer including cost and conveyance of all charges etc., complete as per standard specifications.. , earth work excavation and depositing on bank with initial lead of 10 m and lift of 2 m in narrow trenches for laying of pipes for water supply and sewerage works in hard stiff clay,stiff black cotton,stoney earth and earth mixed withsmall size boulders and hard gravelly soil as directed by departmentel officers as per ss20b., , shoring, and strutting with sheet piles of size width 400 mm x height of 3m x thickness of 9mm as per is 2314-1986 by driving on both sides of the trench from ground level up to the required depth and connecting the above sheet piles by horizontal strutting with sheet piles at an interval of 1.0m, fixing the sheet piles by connecting the horizontal strutting with casurina poles of 8cm to 10cm dia. at 1.50m interval and including removing the sheet piles after the pipelines are laid, jointed, tested, and stacking it safely for other uses. it includes the cost of sheet piles and casurina poles including labour charges for erecting the sheet piles, driving the sheet piles, removing the sheet piles, fixing casurina poles, etc., complete and all other incidental charges for the depths (i) 0-3mts.,(ii) 0-4mts.,(iii) 0-5mts., (iv) 0-6mts.,(v) 0-7mts. and (vi) 0-8mts , supplying and filling in foundation and basement with filling m-sand in layers of not more than 15cm thick well rammed,watered consolidated including cost and conveyance of materials and labour charges etc., complete as per standard specification and as directed by departmental engineers(tnbp no.24&25). , plain cement concrete of mix 1:4:8 (one cement four sand and eight aggregates) using 40mm gauge hard broken including cost conveyance of all materials to site including labour charges, transporting and placing in position including shoring, strutting forming protective bunds, cofferdams bailing out of water la